Improvement in ventilators



T. SIMMONS. Ventilator.

No. 222,207. Patented Dec. 2,1879.

MTI-fesses |r|ver1TuR 4EELl-i'rET i5-CE.

.THOMAS SIMMONS, on HARTFORD, CONNECTICUT, AssrcnonV To niMSELF AND JOSEPH CLAPP, OF SAME PLACE.

, IMPROVEMENT 1N VENTILATORS.

Specification forming part of Letters `Patent No. 2,222,907, dated December 2, 1879; application tiledrr May'zzlea other Suitable heat-generating device, showy mgthe application of my invention. Fig. 2 is longitudinal sectionrofmy invention disconnected from the pipe ofthe stove or other hea-t-- generating device; Figg, cross-section'thereof, taken on line w {not} FigLfZ, to show the rel. ative-position of the grating.

f This invention has relation to thatclassyor means ofvventilationlwherein is employed a stove or heater having an outer pipe encircling the stove-pipe, and a` second pipe communieating with the interior thereof, Whereby'the coldilor vitiated air is carried ofi' by suction.

`The object of the' present invention, therefore,`is'to provideja device simple in construction, and that canlbe applied to any of the ordinary stoves, furnaces, or othersimilar heaters; and afurther object isto so construct the device as to greatly increase the 'suction and more eff'ectually draw the vitiated air or gases into the pipe, and carry them oft' through the chimney or other-means of outlet.

The invention consists in the general construction and arrangement of the several. parts, as will be hereinafter described, and subsequently pointed out in the claims.

In the accompanying drawings,'A represents a stove or other suitable heat-generating device, provided W'ith the usual pipe B, through which the smoke passes from the stove into the' pipe C, a'nd thence into the chimney'.

Between the pipes B Gis applied my invention, which consists of an outcry-cylinder, D, through which passes a conical-shaped tube, E. The shell or cylinder D is also of conical shape, or, in other words, diminishes-in. size as it approaches the pipe C or chimney, with which it connects. rlhe forward end of the cylinder D incloses the tube E, so as to leave no y opening or space between them., but a sufficient space is provided betweentlle interior of the cylinder and outer periphery of the tube to form a vacuum-chamber. f v y v' The tube E does not extend the en tire length of the cylinderD, and disposed betweeuth'e tube and cylinder is a perforated Adiaphragm or grating,` F. This grating is designed for the `purpose of further reducingftheinlet of air or gas to increase its force, and also serves to give support to the center tube, E,'Iandfpro duce a more uniform action.

The cylinder D is provided with a sleeve, Gr, for connecting thereto a pipe; H, which communicates with the vacuum-chamber bctween the interior of the cylinder andexterior of the conical tube, and leads fromY the place to be ventilated. g

The pipe H is shown in the drawings asin a position -to draw foul or vitiated air from the top of aroom in which the stoveor otherheatgenerating device is situated; but the `pipe may be placed in any other position desired., so as to draw from the iioor or from any other apartment. More than one Vsuchpipemay be connected with the cylinder D, and it' desired the vacuum-chamber can be divided longitudinally into compartments, so that each pipe shallhave its Own division andA beoperated upon independently. l A d l,

My invention can also be applied for deodorizing sewer and other gases by .connectinga pipe from the vacuum-chamber to the sewer and connecting the chamber to the stove "or other heat-generatin g device,.to cause intense heat to pass through the chamber `and bringing the gases in direct contact with the heat, thereby completely and effectually changing their poisonous character, thereby.V rendering them harmless before reachingthctop ofV the chimney. l,

An unlimited number of the chambers constructed according to my invention maybe used at the same time, if found necessary, and in such case the entire number ofchambers` employed are acted upon by one andthe same heat-generating device. y A

In the operation of my invention,tlre current ot' hot air from the stoveA, or other heatgenerating device, ascends through the pipe B and conical or tapering tube E, and "thence foul or vitiated air at theupper end ot the pipe H is thus eifectnally drawn into the pipe and discharged into the chimney, from whence it esca-pes into the atmosphere.

Constructing the tube of conical or tapering form is accompanied with many advantages in this class of ventilators, as with this taper or contraction of the tube E at tha-t end lying or disposed within the cylinder D condensation of force is increased, which, in turn greatly increases the velocity ot' the current, thereby insuring a more perfect vacuum, and consequentlya more complete and successful operation ofthe device, it being on the principle ot' the steam-injector.

Dhe perforated diaphragm 0r grating F is also of great importance, as it, as well as the conical or tapering form of the tube E, serves also to further increase the force and velocity of the current by reducing the .inlet of air or gas, as the case may be.

It should further be noticed that the construction of the device renders it easily connectedand adjusted to any stove, furnace, or other heat-generating device, and as readily removed.

The tapering form of the end of the cylinder D admits of its being connected to stovepipes 0f different sizes, and the sleeve G thereon forming a means ot' connecting a suitable Ventilating-pipe, H, which may be simply a pipe of the ordinary construction.

If'desireththat part otl the cylinder D provided with the sleeve Gr may be of one single piece of metal cast in suitable molds, and the tapering portion of the cylinder and also the conical tube Dmay be secured to this casting by rivets or in any other manner desired, the

object being to produce such a ventilating der being detachably connected to the stove and to the pipes G H, substantially as and for the purpose set forth.

2. The stove A, or other snitable-leat-generating device, having connected thereto the conical or tapering tube E, said tube being surrounded by the cylinder D, to form a vacuum-chamber, as describedita-ndr havingr con nected to it' the detachable pipes G H, substan ti ally as an d? forlthepurposespeci iiedl 3: The tube E, comm unicatingwittr afsuitable heatgeneratin g device,-iincolnbin a tiomw'itlrr the cylinderA D, grating F; and* pipel H; sub'- stantiall'y as and for they purposedescribed 4. The cylinder D, having conical' or tapei1J ing tube E, communicating witlr a suitablen heat-generating device, irrV combination W-ith the detachable pipes- H70, the lattercontinuin gbeyond= the uniomof tlieeylinderf witlr thel tube, A substantially asrand; fortlie purposese tforth;

5. The conicalior taperi-ngrtubedil, cylinder D, and gratin gvF; constructedasdescribedl, to form a vacuurn-chamber.;and detachably com nected'to the stove A, or-rotlier-lieabgeneratin g device, andI also to thepipes@ "Hg substantially as and for the purposespecitied 6. As an improveda-rticleot'smanufactura theconical or tapering tubelE' and"grzfttingvl,`

surroundedby ataperingcylinder,- D; having sleeve G, substantially aslandl for-tltwplurpose set forth.

'IXHQMSl SIMMGN-Sl Witnesses: f

THEO. G. ELLIS; GEORGE' G. SUMNER.- 

